Among the genera listed below that cannot be placed with certainty in any brachycerous family, Palaeophora, was originally described in the Phoridae under the preoccupied generic name Archiphora Rohdendorf (1938). It was later (Rohdendorf, 1951) removed to its own family, Paleophoridae. Hennig (1954: 369­p;70) agreed that it was not a phorid, nor even a close relative. Rohdendorf (1964) classified the family Paleophoridae as undetermined to infraorder. Because Hennig's interpretation were based solely on Rohdendorf's illustrations (which are known to have many inaccuracies in depiction of venation), Palaeophora is provisionally listed here as unplaced in the Brachycera until such time as the type can be reexamined.

In addition to the determined forms listed below, undetermined material of Muscoidea was recorded from the Pliocene amber of the Philippines by Durham (1956: 52).

ARCHIPHORA Rohdendorf, 1938: 41. Type species Archiphora ancestrix Rohdendorf, 1938, by original designation. [Preoccupied by Schmitz, 1929.]
PALAEOPHORA Rohdendorf, 1951: 106 [1959b: 286] (new replacement name for Archiphora Rohdendorf). Type species: Archiphora ancestrix Rohdendorf, 1938, automatic.
ancestrix Rohdendorf, 1938: 41 (Archiphora). PA: Kazakhstan (Upper Jurassic) [C].

RHAGIOPSIS Regional Geological Surveying Team, 1990: table 3. Nomen nudum.
robusta Regional Geological Surveying Team, 1990: table 3. Nomen nudum.

SYRPHOPSIS Zeuner, 1931: 316. Type species: Syrphopsis globosiceps Zeuner, 1931, by monotypy.
globosiceps Zeuner, 1931: 316. PA: Germany (Miocene) [P].

atavella Cockerell, 1913a: 295 (Anthomyia). NE: USA (Oligocene) [C].
atavina Heer, 1849: 248 (Anthomyia). PA: Croatia (Miocene) [C].
burgessi Scudder, 1877b: 274 (Anthomyia). NE: Canada (Oligocene) [C].
dubia Weyenberg, 1869: 259 (Chilosia). PA: Germany (Upper Jurassic) [C].
heymanni Heyden, 1870: 263 (Anthomyia). PA: Germany (Oligocene) [C].
inanimata Scudder, 1877b: 273 (Anthomyia). NE: Canada (Oligocene) [C].
laminarum Cockerell, 1917c: 21 (Anthomyia). NE: USA (Oligocene) [C].
latipennis Heer, 1849: 249 (Anthomyia). PA: Croatia (Miocene) [C].
longipes Presl, 1822: 206 (Musca). PA: Baltic Region (Eocene/Oligocene) [A]. [Preoccupied by Scopoli, 1763; no new replacement name proposed here.]
morio Heer, 1849: 249 (Anthomyia). PA: Croatia (Miocene) [C].
pallidus Heer, 1856: 36 (Xylophagus). PA: France (Oligocene) [C].
persepulta Cockerell, 1917b: 380 (Anthomyia). NE: USA (Oligocene) [C].
pulcherrima Meunier, 1915b: 13 (Anthomyia). PA: Baltic Region (Eocene/Oligocene) [A].
resinosa Presl, 1822: 207 (Musca). PA: Baltic Region (Eocene/Oligocene) [A].
sapromyzoides Meunier, 1904e: 25 (Leria). PA: Baltic Region (Eocene/Oligocene) [A].
setosa Presl, 1822: 205 (Musca). PA: Baltic Region (Eocene/Oligocene) [A]. [Preoccupied by Gmelin, 1790; no new replacement name proposed here.]
venosa Presl, 1822: 203 (Musca). PA: Baltic Region (Eocene/Oligocene) [A].
ventricum Lin in Lin et al., 1988: 337 (Simulium). PA: China (Oligocene) [C].
winchesteri Cockerell, 1920a: 253 (Anthomyia). NE: USA (Eocene) [C].